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Species: Brachymyrmex longicornis   Forel, 1907 

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See Also:

Brachymyrmex longicornis hemiops, Brachymyrmex longicornis immunis, Brachymyrmex longicornis pullus

Taxonomic History (provided by Barry Bolton, 2018)

Extant: 3 valid subspecies

Brachymyrmex longicornis Forel, 1907h PDF: 9 (w.) BRAZIL. Neotropic. AntCat AntWiki HOL

Taxonomic history

Forel, 1912j PDF: 62 (q.).


  Geographic regions (According to curated Geolocale/Taxon lists):
    Americas: Brazil, Colombia, Costa Rica
  Biogeographic regions (According to curated Bioregion/Taxon lists):

Distribution Notes:

Argentina, Brazil (type locality), Colombia, Panama, Costa Rica. Costa Rica: La Selva, Hitoy Cerere.


Natural History:

I have relatively few observations of this species. At La Selva Biological Station, it occurred in only 1 of 51 Project ALAS fogging samples, but I collected it by hand twice in tree canopies, once in a Pentaclethra and once in a Terminalia. I also collected it in a Winkler sample of forest floor leaf litter from Hitoy Cerere. I collected a nest in the Santa Marta area of Colombia, in a 9mm diameter dead stick.

This concept of longicornis matched Panamanian specimens sent to me by Ralph Saporito, and reported in a study of alkaloidal toxins of dendrobatid frogs (Saporito et al. 2004).


Saporito, R. A., H. M. Garraffo, M. A. Donnelly, A. L. Edwards, J. T. Longino, and J. W. Daly. 2004. Formicine ants: An arthropod source for the pumiliotoxin alkaloids of dendrobatid poison frogs. Proceedings of the National Academy of Sciences, USA 101:8045-8050.

Taxonomic Treatment (provided by Plazi)

Treatment Citation: Forel, A., 1908, Fourmis de Costa-Rica, récoltées par M. Paul Biolley., Bulletin de la Societe Vaudoise des Sciences Naturelles 44, pp. 35-72

Brachymyrmex longicornis ForelHNS

[[ queen ]]. Ile de Coco (Alfaro). Cette espece avait ete decrite sur des exemplaires importes a Hambourg avec des plantes, de Porto Alegre.

Specimen Habitat Summary

Found most commonly in these habitats: 5 times found in Sura 700m, 1 times found in riparian forest edge, 2 times found in tropical rainforest, old second growth, 1 times found in tropical rainforest, 2nd growth, some big trees, 1 times found in wet forest, 1 times found in La Selva, 1 times found in montane wet forest, 1 times found in Primary wet forest, 1 times found in Puesto20,175G,10m..

Found most commonly in these microhabitats: 1 times Nest in 9mm dia dead stick., 3 times beating veg., 2 times mit Orchideen, 1 times Sobre Vegetacion, 1 times Pentaclethra across Surá from arboretum. Strays in subcanopy., 1 times lebend eingeschleppt mit Orchideen, 1 times ex sifted leaf litter and rotten wood, 1 times Ceiba crown, 1 times canopy of Terminalia tree.

Collected most commonly using these methods: 5 times Fogging, 3 times search, 3 times beating, 1 times Sweeping, 1 times winkler, 1 times Berlese, 1 times Canopy fogging, 1 times Malaise.

Elevations: collected from 50 - 550 meters, 140 meters average

Type specimens: syntype of Brachymyrmex longicornis: usnment00757144; type of Brachymyrmex longicornis: focol0009, focol0010

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